Observium alerts not working

By Vratislav HutskyPosted on Posted in General thoughts, Hardware, Operating systemsTagged with hardware, linux, OS

I’ve been running an instance of Observium for a couple of years now. I had set it up for the VPS which I’m running this blog on or for my home NAS, it’s really nice to be able to see …

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Early RHEL 9/CentOS 9 Stream

By Vratislav HutskyPosted on Posted in General thoughts, Operating systemsTagged with centos, linux, OS, RHEL

Even if it’s still in pre-Beta, it has been publicly known that RHEL 9.0 development is well under way for some time now. But that’s not all there is to it – not only is this information public, the development …

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Gnome 3 and ‘switch to workspace 5 and above’ shortcut

By Vratislav HutskyPosted on Posted in Operating systemsTagged with desktop, gnome, RHEL

As far as desktop environments go, I somehow got stuck in the Gnome 2 days, and when Gnome 3 became a thing, I simply carried on with its fork, Mate. Partially because I was used to it, but more importantly, …

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SoundWire: Android as a remote speaker

By Vratislav HutskyPosted on Posted in General thoughtsTagged with hardware, mate

I was having issues with my desktop PC and connection of Bluetooth headphones via a generic dongle. This was probably caused by poor driver support of those Bluetooth dongles in Linux, I tried two of them but the result was …

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MATE and bluetooth headset problem

By Vratislav HutskyPosted on Posted in General thoughtsTagged with debian, mate

Some time ago, I bought wireless headphones Bose QuietComfort 35 II, they have nice sound, great noise cancelling and I have to say I immediately took to the comfort of having no wires attached. They connect seamlessly with Android phone, …

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Disable automatic Flatpak updates

By Vratislav HutskyPosted on Posted in General thoughts, Operating systemsTagged with gnome, linux, RHEL

I have to say I feel slightly ambiguous about Flatpak. On one hand, I’m really glad it allows me to run applications like Spotify, Zoom or Skype on my computers in a convenient way. Applications that are not open sourced, …

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Upgrade Postgresql from 9.3 to 11

By Vratislav HutskyPosted on Posted in Operating systemsTagged with centos, linux, postgresql

I had to update an already unsupported Postgresql instance running on version 9.3 to the latest version 11. Luckily, this process is quite straightforward and all the hard lifting is done by the postgresql update tool. The only problem there …

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RHEL 8 Beta

By Vratislav HutskyPosted on Posted in Operating systemsTagged with desktop, kvm, linux, OS, RHEL

Beta version of Red Hat Enterprise Linux 8.0 was announced recently. It can be downloaded without any registration, or you can go through the Developers Program and get a subscription for development usage for free. I downloaded the ISO this …

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Migration from OpenLDAP 2.3 to 2.4

By Vratislav HutskyPosted on Posted in Operating systemsTagged with centos, ldap, linux

Note: I wrote this post during Christmas break 2017, but it took me some time before I managed to give it a better form, verify the steps again and publish it. Hence some Xmas references in a text published during …

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Debian buster and wake on lan

By Vratislav HutskyPosted on Posted in Hardware, Operating systemsTagged with debian, linux, networking

For quite some time, I used to have a low-end motherboard that didn’t support Wake on LAN. So when I left for work or holiday, I would usually leave my home PC on, because sometimes I just needed to access …

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